per comment 1, the module tested is

Network controller [0280]: Qualcomm Atheros QCA6174 802.11ac Wireless
Network Adapter [168c:003e]

** Changed in: oem-priority
       Status: New => Confirmed

** Changed in: oem-priority
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1840416

Title:
  2.4g wifi connection failed randomly during wpa re-key

Status in OEM Priority Project:
  Confirmed
Status in network-manager package in Ubuntu:
  New

Bug description:
  I'm not sure this issue caused by WIFI AP or WIFI module.
  From log, it looks the tested machine can not get new key from WIFI AP 
randomly.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.6-2ubuntu1.1
  ProcVersionSignature: Ubuntu 4.15.0-1030.35-oem 4.15.18
  Uname: Linux 4.15.0-1030-oem x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Aug 16 14:51:12 2019
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-bionic-amd64-20180608-47+italia-whl+X37
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2019-08-14 (2 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 
20180608-09:38
  IpRoute:
   default via 10.101.46.1 dev wlp2s0 proto dhcp metric 600 
   10.101.46.0/24 dev wlp2s0 proto kernel scope link src 10.101.46.198 metric 
600 
   169.254.0.0/16 dev wlp2s0 scope link metric 1000
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-con:
   NAME                UUID                                  TYPE  TIMESTAMP   
TIMESTAMP-REAL                            AUTOCONNECT  AUTOCONNECT-PRIORITY  
READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE     
 ACTIVE-PATH                                         SLAVE 
   Canonical-2.4GHz-g  f0a4469e-23e9-4899-a498-49a50b3a8e21  wifi  1565938016  
廿十九年八月十六日 (週五) 十四時46分56秒  yes          0                     no        
/org/freedesktop/NetworkManager/Settings/1  yes     wlp2s0  activated  
/org/freedesktop/NetworkManager/ActiveConnection/5  --
  nmcli-dev:
   DEVICE  TYPE      STATE      DBUS-PATH                                  
CONNECTION          CON-UUID                              CON-PATH              
                             
   wlp2s0  wifi      connected  /org/freedesktop/NetworkManager/Devices/2  
Canonical-2.4GHz-g  f0a4469e-23e9-4899-a498-49a50b3a8e21  
/org/freedesktop/NetworkManager/ActiveConnection/5 
   lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/1  --   
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN    
   running  1.10.6   connected  started  full          enabled     enabled  
enabled  enabled  enabled

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